// Written in the D Programming Language
/*
 * Copyright (c) 2008 OpenGLUtils
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * * Neither the name of 'OpenGLUtils' nor the names of its contributors 
 *   may be used to endorse or promote products derived from this software 
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
module openglutils.GLTexture;

import openglutils.GLObject;
import openglutils.GL;

private class GLTexture(GLuint T) : GLObject
{
	/**
	 * Binds this texture.
	 */
	public void bind()
	{
		glBindTexture(T, getId());
	}

	/**
	 * Checks if the given id is a valid texture.
	 * 
	 * Params:
	 *     id = the id to be checked 
	 * Returns: True is the id is a texture, false otherwise.
	 */
	public static bool isTexture(GLuint id)
	{
		return glIsTexture(id) == GL_TRUE;
	}
	
	protected GLuint generateID()
	{
		GLuint id;
		glGenTextures(1, &id);
		return id;
	}

	protected void destroy()
	{
		GLuint id = getId();
		glDeleteTextures(1, &id);
	}
}

/**
 * GLTexture1D is the OpenGL 1D texture object. It provides an interface for calling those functions pertaining to
 * 1D textures in OpenGL.
 */
public alias GLTexture!(GL_TEXTURE_1D) GLTexture1D;

/**
 * GLTexture2D is the OpenGL 2D texture object. It provides an interface for calling those functions pertaining to
 * 2D textures in OpenGL.
 */
public alias GLTexture!(GL_TEXTURE_2D) GLTexture2D;

/**
 * GLTexture3D is the OpenGL 3D texture object. It provides an interface for calling those functions pertaining to
 * 3D textures in OpenGL.
 */
public alias GLTexture!(GL_TEXTURE_3D) GLTexture3D;

/**
 * GLTextureCube is the OpenGL cube map texture object. It provides an interface for calling those functions pertaining 
 * to cube map textures in OpenGL.
 */
public alias GLTexture!(GL_TEXTURE_CUBE_MAP) GLTextureCube;
